/* ==========================================================================
   Base Design System - Cep Nakliye (Programmatic SEO Platform)
   ========================================================================== */

   :root {
    /* Colors */
    --clr-navy: #0B1D3A;
    --clr-navy-light: #1A365D;
    --clr-orange: #FF6B00;
    --clr-orange-hover: #E65C00;
    --clr-white: #FFFFFF;
    --clr-gray-50: #F8FAFC;
    --clr-gray-100: #F1F5F9;
    --clr-gray-200: #E2E8F0;
    --clr-gray-800: #1E293B;
    --clr-gray-900: #0F172A;

    /* Typography */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Roboto', system-ui, -apple-system, sans-serif;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-8: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Document Setup
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--clr-gray-800);
    background-color: var(--clr-gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--clr-gray-900);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-3);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }

p { margin-bottom: var(--space-4); }

a {
    color: var(--clr-navy);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover { color: var(--clr-orange); }

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   Layout & Utilities
   ========================================================================== */
.container {
    width: 100%;
    margin-inline: auto;
    padding-inline: var(--space-4);
    max-width: 1200px;
}

.section {
    padding-block: var(--space-8);
}

.bg-navy { background-color: var(--clr-navy); color: var(--clr-white); }
.bg-navy h2, .bg-navy h3 { color: var(--clr-white); }
.bg-gray { background-color: var(--clr-gray-100); }

.text-center { text-align: center; }

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-5);
}

.grid-cols-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ==========================================================================
   Components
   ========================================================================== */

/* Buttons (Modern, Touch-Friendly for Mobile) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background-color: var(--clr-orange);
    color: var(--clr-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--clr-orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--clr-white);
}

.btn-secondary {
    background-color: var(--clr-navy);
    color: var(--clr-white);
}

.btn-secondary:hover {
    background-color: var(--clr-navy-light);
    color: var(--clr-white);
}

/* Header / Navigation */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--clr-gray-200);
    position: sticky;
    top: 0;
    z-index: 50;
    padding-block: var(--space-3);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--clr-navy);
    font-family: var(--font-heading);
}

.logo span {
    color: var(--clr-orange);
}

.nav-links {
    display: flex;
    gap: var(--space-4);
    list-style: none;
}

.nav-links a {
    font-weight: 600;
    color: var(--clr-gray-800);
}

.nav-links a:hover {
    color: var(--clr-orange);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--clr-navy) 0%, var(--clr-navy-light) 100%);
    color: var(--clr-white);
    padding-block: clamp(4rem, 10vw, 8rem);
    text-align: center;
}

.hero h1 {
    color: var(--clr-white);
}

.hero-lead {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    max-width: 800px;
    margin-inline: auto;
    opacity: 0.9;
}

/* Service Cards */
.card {
    background: var(--clr-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid var(--clr-gray-200);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-content {
    padding: var(--space-5);
}

.card-title {
    color: var(--clr-navy);
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
}

/* Footer & District Links Grid */
.site-footer {
    background-color: var(--clr-gray-900);
    color: var(--clr-gray-200);
    padding-block: var(--space-8) var(--space-4);
}

.footer-grid {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: var(--space-6);
}

.footer-heading {
    color: var(--clr-white);
    font-size: 1.25rem;
    margin-bottom: var(--space-4);
}

.district-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--space-2);
    list-style: none;
}

.district-links a {
    color: var(--clr-gray-400);
    font-size: 0.875rem;
}

.district-links a:hover {
    color: var(--clr-orange);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--clr-gray-800);
    font-size: 0.875rem;
    color: var(--clr-gray-400);
}

/* Location Notice (IP/City injected area) */
.location-notice {
    background-color: var(--clr-orange);
    color: var(--clr-white);
    text-align: center;
    padding: var(--space-2);
    font-weight: 600;
    font-size: 0.875rem;
    display: none; /* Hidden until activated via JS */
}

.location-notice.active {
    display: block;
}

/* Media Queries */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Simple mobile menu hidden for now, can implement toggle later */
    }
}